Across
- 2. The study of matter and energy
- 4. The organ that helps us to keep balance
- 6. The state of matter that has an indefinite shape but definite volume
- 7. A system of stars, their planets, asteroids, etc.
- 8. Gas responsible for the blue color of the sky
- 9. A group of stars forming a recognizable pattern
Down
- 1. The process of breaking down food to release energy in living organisms
- 3. Type of rock would form at the bottom of a river
- 5. Amount of bones sharks have
- 10. The first phase of the moon